On Thu, 23 Jul 2015, Christian Heimes wrote:
This patch removes the dependency on M2Crypto in favor for cryptography.
Cryptography is more strict about the key size and doesn't support
non-standard key sizes:
from M2Crypto import RC4
from ipaserver.dcerpc import arcfour_encrypt
RC4.RC4(b'key').update(b'data')
'o\r@\x8c'
arcfour_encrypt(b'key', b'data')
Traceback (most recent call last):
...
ValueError: Invalid key size (24) for RC4.
Standard key sizes 40, 56, 64, 80, 128, 192 and 256 are supported:
arcfour_encrypt(b'key12', b'data')
'\xcd\xf80d'
RC4.RC4(b'key12').update(b'data')
'\xcd\xf80d'
Note that we are using NTLMv2 or Kerberos user session keys which are
128 bit long in this context.
And please rework the spec file change as Honza noted.
--
/ Alexander Bokovoy
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